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https://issues.apache.org/jira/browse/KAFKA-12667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17320768#comment-17320768
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Bruno Cadonna commented on KAFKA-12667:
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[~antrenta] Thank you for the ticket! This seems indeed a bug to me. It is too
late to submit a bug fix for the two upcoming releases 2.7.1 and 2.6.2.
However, I marked this ticket as important for the possible releases 2.7.2 and
2.6.3.
I looked into the code on trunk and there the bug seems to be fixed.
> Incorrect error log on StateDirectory close
> -------------------------------------------
>
> Key: KAFKA-12667
> URL: https://issues.apache.org/jira/browse/KAFKA-12667
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 2.7.0, 2.6.1
> Reporter: Jan Justesen
> Priority: Major
> Fix For: 2.6.3, 2.7.2
>
>
> {{In StateDirectory.close() an error is logged about unclean shutdown if all
> locks are in fact released, and nothing is logged in case of an unclean
> shutdown.}}
>
> {code:java}
> // all threads should be stopped and cleaned up by now, so none should remain
> holding a lock
> if (locks.isEmpty()) {
> log.error("Some task directories still locked while closing state, this
> indicates unclean shutdown: {}", locks);
> }
> {code}
>
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